Join Date: May 2005
Location: various cities in the USofA: NYC, BWI, IAH, ORD, CVG, NYC
Programs: Former UA 1K, National Exec. Elite
Posts: 5,487
Nope.
As for the overnight: ? My guess (complete guess) would be that if the next day's flight was a different flight number and you were issued a new boarding pass with said flight number, you might have a shot.